Automatic Dimming Rearview Mirror
with Compass
Your vehicle may have an automatic dimming rearview
mirror with a compass. This feature enables the
mirror to sense nighttime glare from vehicle headlamps
from behind and automatically dim to reduce the
glare to a safe level.
The automatic dimming feature turns on each time the
vehicle is started. Press the OFF button once and
the green indicator light located to the left of the button
will go out indicating the feature is off. To turn the
feature back on, press and release the AUTO button
and the green indicator light will come on.
Compass Operation
Press the on/off button once to turn the compass on
or off.
When the ignition and the compass feature are on, the
compass will show two character boxes for a few
seconds. After a few seconds, the mirror will display the
current compass direction.
Compass Calibration
If after a few seconds the display does not show a
compass direction, (N for North for example), there may
be a strong magnetic field interfering with the compass.
Such interference may be caused by a magnetic
antenna mount, note pad holder, or similar object. If the
letter C appears in the compass window, the compass
may need to be reset or calibrated.
The mirror can be calibrated by driving the vehicle in
circles at 5 mph (8 km/h) or less until the display reads a
direction.
Compass Variance
Compass variance is the difference between earth’s
magnetic north and true geographic north. If the mirror
is not adjusted for compass variance, the compass
could give false readings.
The mirror is set in zone eight upon leaving the factory.
It will be necessary to adjust the compass to
compensate for compass variance if the vehicle is
driven outside zone eight. Under certain circumstances,
such as a long distance, cross-country trip, it will be
necessary to adjust the compass variance.
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